Esther Billingsley, PAC
NPI 1033175237 · Medical Physician Assistant · Sacramento, CA
Esther Billingsley, PAC is a Medical Physician Assistant provider in Sacramento, CA (NPI 1033175237).
Provider details
- NPI number
- 1033175237
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Female
- Sole proprietor
- No
- License
- PAC PA12066 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Buprenorphine Hcl | 56 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 44 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2025-10-14
- Certified
- 2025-10-14
Frequently asked questions
- What is Esther Billingsley's NPI number?
- Esther Billingsley's National Provider Identifier (NPI) is 1033175237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Esther Billingsley's specialty?
- Esther Billingsley is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Esther Billingsley located?
- Esther Billingsley's practice location on file with NPPES is 805 University Ave, Sacramento, CA 95825-6724.
- What is Esther Billingsley's phone number?
- The practice phone number listed in the NPPES registry for Esther Billingsley is (916) 573-9471.
- Is Esther Billingsley's NPI active?
- Yes — Esther Billingsley's NPI (1033175237) is active in the NPPES registry as of the last update on 2025-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.